Outcome 3:Understand Security Threats and Protection

Table of Contents

1. Introduction
2. Security threats
3. Protection Methods
   1. Browser settings
   2. How to change Settings
   3. E-mail filters
   4. Anti-Malware Software
   5. Security Zones
   6. Public and Private
   7. Demilitarised Zone (DMZ)
   8. Implementing a DMZ
   9. Intranets and Extranets
   10. VPN Activity
   11. Intrusion Detection Systems
4. Summary
5. SAQ 1

Intranets and Extranets

An extranet is similar, but the information can also be shared with customers, suppliers or other approved third parties.

Although both can be totally separate from the Internet, it is common for them to be implemented in part using virtual private networks. These use secure protocols to tunnel through the Internet. This can allow authorised users the ability to login from remote sources.

Next: VPN Activity